Facing rising fuel prices and energy security challenges, the U.S. Army has committed to meeting a quarter of its energy needs with renewable resources by 2025, and to achieving net zero energy use by 2030.

If you live in or commute daily to a city, you know the drawbacks of relying on a car. There’s traffic, the high cost of gas and maintenance - not to mention the endless challenge of finding a parking spot.

Snoopy will have more than the Red Baron to keep an eye on as competitors take to the skies above California's Charles M. Schulz Sonoma County Airport this fall in pursuit of a $1.65 million prize for fuel-efficient aircraft.